{"product_id":"jet-keihin-pb-style-carburetors-genuine-jetkh1-4","title":"Main Jet for Keihin Style PB, PAB and CVK Carburetors- 4mm","description":"\u003ch2\u003ePrecision Tuning: Keihin Style 4mm \"Small Round\" Main Jets\u003c\/h2\u003e\u003cp\u003eFine-tune your air-fuel ratio with these high-precision \u003cstrong\u003e4mm Main Jets\u003c\/strong\u003e. Designed for Keihin PB, PAB, and CVK series carburetors, these jets are the essential component for optimizing performance after installing a big-bore kit, exhaust, or high-flow air filter. These are \u003cstrong\u003e\"Small Round\" (99101-116)\u003c\/strong\u003e style jets, featuring an M4x0.70 thread.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJet Style:\u003c\/strong\u003e Keihin Small Round (99101-116 Style)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch:\u003c\/strong\u003e M4 x 0.70mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 7mm (Total Length) x 5mm (Head Diameter)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Grade Machined Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e #75 through #130\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cp\u003eThese 4mm jets are the standard for many OEM and aftermarket 50cc to 150cc carburetors:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eCarburetor Types\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeihin Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePB, PAB, NCV, CVK (17mm, 20mm, 22mm, 24mm, 26mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGenuine Scooters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBuddy 50\u003c\/strong\u003e (Stock #74), \u003cstrong\u003eBuddy 125\/150\u003c\/strong\u003e (Stock #90), RoughHouse 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGY6 \/ 139QMB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMost Chinese 50cc \u0026amp; 150cc CVK Carburetors (TaoTao, Wolf, Ice Bear, Bintelli)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eJapanese Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelect Honda, Yamaha, and SYM 4-stroke models using Keihin CVK units.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eTuning Advice:\u003c\/strong\u003e Always start with a \u003cstrong\u003elarger jet\u003c\/strong\u003e than you think you need and \"jet down.\" Running too small (lean) can cause engine overheating and permanent damage. For a comprehensive guide, visit our \u003ca href=\"https:\/\/www.scooterworks.com\/blogs\/jetting-instructions\"\u003eJetting Instructions Blog\u003c\/a\u003e.\u003c\/blockquote\u003e\u003ch5 style=\"font-size: 0.85em; color: #666;\"\u003eNote: Not compatible with Keihin \"Large Round\" (99101-393) or \"Hex\" (99101-357) styles. Please verify your jet dimensions before ordering.\u003c\/h5\u003e\u003cp\u003eOriginal Parts For Scooters SKUs 114-36-75, 114-36-80, 114-36-85, 114-36-95, 114-36-100, 114-36-105, 114-36-110, 114-36-120, 114-36-125 \u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e","brand":"Scooterworks USA, LLC","offers":[{"title":"Default Title","offer_id":48111852552379,"sku":"JETKH1    90","price":6.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/58CA14B5-829B-4CA6-BF18-FF3FCD7E6CA1_3f7cea1e-b035-47bc-9d62-a77af45e4904.png?v=1784296773","url":"https:\/\/thriftyscooters.com\/products\/jet-keihin-pb-style-carburetors-genuine-jetkh1-4","provider":"Thrifty Scooters","version":"1.0","type":"link"}